Stackable shelf



FIG. 1 is a perspective view of the stackable shelf in the assembled position;

FIG. 2 is a perspective view thereof; shown in a disassembled position;

FIG. 3 is a perspective view of a single shelf, shown separately for completeness of illustration;

FIG. 4 is a front elevational view of FIG. 3;

FIG. 5 is a side elevational view of FIG. 3;

FIG. 6 is a top plan view of FIG. 3; and,

FIG. 7 is a bottom plan view of FIG. 3. 

The ornamental design for a stackable shelf, as shown and described. 